Public bug reported:
When processing some ports the bug triggering this traceback interrupts
processing of openflow rules for ovs, one symptom is affected instances
not getting the proper wiring within ovs to connect tenant networking
tunnels cutting an affected instance off from DHCP.
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [None
req-f236b063-cbce-4b8e-ba36-2c1a5e6dc940 - - - - - -] Error while processing
VIF ports: AttributeError: 'dict' object has no attribute 'id'
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent Traceback (most
recent call last):
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2874, in rpc_loop
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
failed_devices = self.process_network_ports(
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2267, in process_network_ports
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self.treat_devices_added_or_updated(
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2088, in treat_devices_added_or_updated
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
need_binding = self.treat_vif_port(port, details['port_id'],
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 1952, in treat_vif_port
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
port_needs_binding = self.port_bound(
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 1221, in port_bound
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self.dvr_agent.bind_port_to_dvr(port, lvm,
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/osprofiler/profiler.py", line 159, in wrapper
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent result =
f(*args, **kwargs)
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py",
line 672, in bind_port_to_dvr
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self.unbind_port_from_dvr(port, local_vlan_map)
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/osprofiler/profiler.py", line 159, in wrapper
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent result =
f(*args, **kwargs)
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py",
line 875, in unbind_port_from_dvr
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self._unbind_port_on_dvr_subnet(vif_port,
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py",
line 809, in _unbind_port_on_dvr_subnet
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent if lport.id
!= port.vif_id:
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent ^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent AttributeError:
'dict' object has no attribute 'id'
An extra logging statement confirms lport is definitely a dict and id is
a key not an attribute.
2025-09-04 12:56:07.612 546122 DEBUG
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_dvr_neutron_agent [None
req-f236b063-cbce-4b8e-ba36-2c1a5e6dc940 - - - - - -] lport: {'id':
'f48ce516-6a37-4ccd-98db-12d06dd654b1', 'name': 'blast-k8s-controlplane-01',
'network_id': '37bfe833-9
4f3-4477-9a20-6e0724f6fa65', 'tenant_id': '8885b9a4c8bb471e9a30b1d67744cbc6',
'mac_address': 'fa:16:3e:4c:3d:af', 'admin_state_up': True, 'status': 'DOWN',
'device_id': 'f3a1bdf2-e47d-41c0-9621-5c0a915158b9', 'device_owner':
'compute:nova', 'standard_attr_id': 2018578, 'project_id
': '8885b9a4c8bb471e9a30b1d67744cbc6'} _unbind_port_on_dvr_subnet
/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py:808
Looks to have been introduced by
https://opendev.org/openstack/neutron/commit/1364715541247d9aa941f3305acef4b8f9e37274
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2122066
Title:
ovs agent missing openflow rules due to python error
Status in neutron:
New
Bug description:
When processing some ports the bug triggering this traceback
interrupts processing of openflow rules for ovs, one symptom is
affected instances not getting the proper wiring within ovs to connect
tenant networking tunnels cutting an affected instance off from DHCP.
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [None
req-f236b063-cbce-4b8e-ba36-2c1a5e6dc940 - - - - - -] Error while processing
VIF ports: AttributeError: 'dict' object has no attribute 'id'
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent Traceback (most
recent call last):
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2874, in rpc_loop
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
failed_devices = self.process_network_ports(
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2267, in process_network_ports
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self.treat_devices_added_or_updated(
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 2088, in treat_devices_added_or_updated
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
need_binding = self.treat_vif_port(port, details['port_id'],
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 1952, in treat_vif_port
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
port_needs_binding = self.port_bound(
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_neutron_agent.py",
line 1221, in port_bound
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self.dvr_agent.bind_port_to_dvr(port, lvm,
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/osprofiler/profiler.py", line 159, in wrapper
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent result =
f(*args, **kwargs)
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py",
line 672, in bind_port_to_dvr
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self.unbind_port_from_dvr(port, local_vlan_map)
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/osprofiler/profiler.py", line 159, in wrapper
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent result =
f(*args, **kwargs)
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
^^^^^^^^^^^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py",
line 875, in unbind_port_from_dvr
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent
self._unbind_port_on_dvr_subnet(vif_port,
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent File
"/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py",
line 809, in _unbind_port_on_dvr_subnet
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent if lport.id
!= port.vif_id:
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent ^^^^^^^^
2025-09-04 12:56:07.612 546122 ERROR
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent AttributeError:
'dict' object has no attribute 'id'
An extra logging statement confirms lport is definitely a dict and id
is a key not an attribute.
2025-09-04 12:56:07.612 546122 DEBUG
neutron.plugins.ml2.drivers.openvswitch.agent.ovs_dvr_neutron_agent [None
req-f236b063-cbce-4b8e-ba36-2c1a5e6dc940 - - - - - -] lport: {'id':
'f48ce516-6a37-4ccd-98db-12d06dd654b1', 'name': 'blast-k8s-controlplane-01',
'network_id': '37bfe833-9
4f3-4477-9a20-6e0724f6fa65', 'tenant_id': '8885b9a4c8bb471e9a30b1d67744cbc6',
'mac_address': 'fa:16:3e:4c:3d:af', 'admin_state_up': True, 'status': 'DOWN',
'device_id': 'f3a1bdf2-e47d-41c0-9621-5c0a915158b9', 'device_owner':
'compute:nova', 'standard_attr_id': 2018578, 'project_id
': '8885b9a4c8bb471e9a30b1d67744cbc6'} _unbind_port_on_dvr_subnet
/usr/lib/python3/dist-packages/neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py:808
Looks to have been introduced by
https://opendev.org/openstack/neutron/commit/1364715541247d9aa941f3305acef4b8f9e37274
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/2122066/+subscriptions
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